Nonleptonic two-body charmless B decays involving a tensor meson in ISGW2 model

Details Nonleptonic two-body charmless B decays involving a tensor meson in ISGW2 model Nonleptonic two-body charmless B decays involving a tensor meson in ISGW2 model

2002-05-23

arxiv.org/abs/hep-ph/0205263v2

Phys.Rev. D67 (2003) 014002

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, REVTEX; minor clarifications included; to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.67.014002

Nonleptonic charmless B decays into a pseudoscalar (P) or a vector (V) meson accompanying a tensor (T) meson are re-analyzed. We scrutinize the hadronic uncertainties and ambiguities of the form factors which appear in the literature. The Isgur-Scora-Grinstein-Wise updated model (ISGW2) is adopted to evaluate the relevant hadronic matrix elements. We calculate the branching ratios and CP asymmetries for various $B\to P(V)T$ decay processes. With the ISGW2 model, the branching ratios are enhanced by about an order of magnitude compared to the previous estimates. We show that the ratios $\calB(B\to VT)/\calB(B\to PT)$ for some strangeness-changing processes are very sensitive to the CKM angle $\gamma$ ($\phi_3$).

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